CHS — Beta vulgaris subsp. vulgaris

Summary

BvCHS (BVRB_2G042480) on sugar beet chromosome 2 encodes a chalcone synthase family protein with polyketide synthase type-III and chalcone/stilbene synthase domains, and exhibits naringenin-chalcone synthase, chalcone isomerase, flavanone 4-reductase, flavonol synthase, and SUMO transferase activities. The gene is associated with chalcone, polyketide, flavonol, anthocyanin, carotenoid, and wax biosynthesis, as well as auxin polar transport, sucrose metabolism, response to UV and gravity, and pollen wall assembly. It has been linked to root yield, anthocyanin content, flowering time, photosynthetic rate, respiration rate, UV light sensitivity, oxidative stress response, salt stress tolerance, drought tolerance, root morphology, and stomatal opening. The product localizes to the cytosol, nucleus, endoplasmic reticulum, and tonoplast. Studies of related genes in other species connect the family to pollen exine development, male fertility, seed coat pigmentation, and disease resistance.